I get that it is 80"high but does 52"refer to its circumference or what? Is it roundish or sort of rectangular. If the latter, shouldn't there be 3 dimensions? Also how heavy is the paper? Sort of like a lawn and leaf bag or less or more heavy? Thank you.

You are dead on. The height of the sheet pan rack cover is 80" and the circumference is 52". It has a thin, garbage bag-like thickness and texture. We updated the product features listed above. Thanks for keeping us on our toes!